SG7800A/SG7800 SERIES
SG7800A/SG7800
POSITIVE FIXED VOLTAGE REGULATOR
DESCRIPTION
FEATURES
The SG7800A/SG7800 series of positive regulators offer self contained,
• Output voltage set internally to ±1.5% on SG7800A
fixed-voltage capability with up to 1.5A of load current and input voltage up • Input voltage range to 50V max. on SG7800A
to 50V (SG7800A series only). These units feature a unique on-chip • Two volt input-output differential
trimming system to set the output voltages to within±1.5% of nominal on the
SG7800A series,±2.0%ontheSG7800series. TheSG7800Aversionsalso
• Excellent line and load regulation
• Foldback current limiting
offer much improved line and load regulation characteristics. Utilizing an • Thermal overload protection
improved Bandgap reference design, problems have been eliminated that • Voltages available: 5V, 12V, 15V
are normally associated with the Zener diode references, such as drift in • Available in surface mount package
output voltage and large changes in the line and load regulation.
HIGH RELIABILITY FEATURES
- SG7800A/7800
All protective features of thermal shutdown, current limiting, and safe-area
control have been designed into these units and since these regulators
require only a small output capacitor for satisfactory performance, ease of
application is assured.
♦ Available to MIL-STD - 883
♦ MIL-M38510/10702BXA - JAN7805T
♦ MIL-M38510/10703BXA - JAN7812T
♦ MIL-M38510/10704BXA - JAN7815T
♦ MIL-M38510/10706BYA - JAN7805K
♦ MIL-M38510/10707BYA - JAN7812K
♦ MIL-M38510/10708BYA - JAN7815K
♦ Radiation data available
Although designed as fixed-voltage regulators, the output voltage can be
increased through the use of a simple voltage divider. The low quiescent
draincurrentofthedeviceinsuresgoodregulationwhenthismethodisused.
Product is available in hermetically sealed TO-257, TO-3, TO39 and LCC
packages.
♦ LMI level "S" processing available
SCHEMATIC DIAGRAM
*
* For normal operation the (VOS) sense pin must be externally connected to the load.
12/91 Rev 1.3 10/97
LINFINITY Microelectronics Inc.
Copyright 1997
11861 Western Avenue ∞ Garden Grove, CA 92841
1
(714) 898-8121 ∞ FAX: (714) 893-2570